I met several people there, two of _____were foreigners. 

The 16th Asian Games started ________ November 12 th,2010 in Guangzhou.

It’s ______ cold today, but I have still finished ______ homework.

In English class, our teacher often creates an environment _____ we are given the opportunity to solve problems ourselves．

we can’t remove our troubles in lifeforever, we can leave them behind when we are on vocation.